Val, I graduated from a school of a similar type to Seven Sisters in the '90s and that sounds about right, although I do remember multiple choice tests in intro psych and possibly the intro geology class I took (not coincidentally, I'm sure, these were also my biggest classes). Intro psych was too easy--one of just a couple of classes like that. The other that was too easy was intro to computers, which I shouldn't have taken, but took to get out of taking math (we had a quantitative skills requirement). My school had an honor code to the point where there were no proctors at any exam. I never observed a single violation--doesn't mean there weren't any, but I never saw it, and I never, ever heard anyone talk about breaking the code.
I could have spent more time on my work, but I spent a lot. I definitely had hundreds of pages to read a week, and some of it was horrifically dense literary theory and that sort of thing.
I do think the science majors were working harder than I was, though. But I read really fast, and writing papers is easy for me.